
Shell casings found at the site where a masked gunman shot and killed UnitedHealthcare CEO Brian Thompson had the words "deny," "defend" and "depose" scrawled on them, a senior New York City law enforcement official briefed on the investigation told NBC News on Thursday. The presence of the words was first reported by ABC News.
Thompson, 50, was killed after being hit by at least three shots outside the New York Hilton Midtown early on Wednesday while on his way to speak at UnitedHealth Group's investor conference. NYPD Commissioner Jessica Tisch said the "brazen, targeted attack" was "premeditated," but police have said the motive remains unknown. The gunman is still at large.